If there are a finite number of SLS flights on NASA’s schedule, it’s difficult to justify the projected $5.7 billion cost of developing the upgraded Block 1B version of the Space Launch System.

For example, for the Artemis IV mission, NASA plans to use the SLS Block 1B configuration, which is 366 feet tall compared to the 322-foot Block 1 configuration being used for the Artemis II mission.

The Artemis II astronauts, as well as folks following the mission preparations, will be pleased to learn that NASA recently lifted the SLS rocket ... vehicle stage adapter, interim cryogenic ...

The explosion Thursday night of the SpaceX Starship was a reminder that there’s only rocket right now that NASA says is capable of reaching the moon. That hardware of the Space Launch System is ...

NASA has outlined how it will respond to President Donald Trump’s order that federal agencies eliminate “waste, bloat, and insularity” — but it’s not yet clear just how sweeping the chan ...

Now NASA is pushing to accelerate the timeline. There are still a lot of parts in play. On Friday morning the core stage of the SLS rocket sat in one corner of the assembly building, but it is ...

NEW YORK (AP) — A NASA spacecraft will make another close brush with the sun, the second of three planned encounters through the sizzling solar atmosphere. The Parker Solar Probe made its record ...

Credit: Lockheed Martin AUSTIN, Texas — NASA has yet to restore communications ... payloads on the inaugural launch of the Space Launch System in November 2022, on a mission to study water ...

(AP) — Just over a day after blasting off, a SpaceX crew capsule arrived at the International Space Station on Sunday, delivering the replacements for NASA’s two stuck astronauts. The four ...

Over the past month there has been something more than a minor kerfuffle in the space industry over the return of two NASA astronauts from the International Space Station. The fate of Butch ...